NOZZLE UNIT OF JET PROJECTILE Russian patent published in 2002 - IPC

FIELD: nozzle units of jet projectiles, applicable in development of jet projectiles of salvo-fire rocket systems. SUBSTANCE: the nozzle unit has an entry cone with a groove and a shoulder, exit bell mouth and a fairing with blades installed on the groove of the entry cone. The exit bell mouth is provided with the main frame with a thread mounted on which is the thread bush with the groove and shoulder. The rear extremity of the fairing is positioned on the groove of the thread bush, and the fairing is tightened between the shoulder of the entry cone and the stop of the thread bush. The grooves of the entry cone and the thread bush have a length not exceeding 0.05 of their diameter, and the shoulder and the main frame are removed from the joint of the entry cone and the exit bell mouth at a distance making up 0.4 to 0.6 of the fairing length. EFFECT: reduced eccentricity of reactive force built up by the propulsion reactive force built up by the propulsion system, as well as deviation in flight of the blade angle of the aerodynamic stabilizer from the nominal value. 2 dwg